Polymeric strands including a propylene polymer composition and nonwoven fabric and articles made therewith
US6500538B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 1995 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | May 16, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/641
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Single and multicomponent polymeric strands including a blend of a melt-extrudable polyolefin and a heterophasic polypropylene composition. The heterophasic polypropylene composition includes three polymers and is normally not melt-spinable into strands by itself. In the multicomponent strands, the blend is in one side or the sheath. Fabric made with such strands is also disclosed and has improved combinations of strength, abrasion resistance, and softness properties. Composite materials including the foregoing fabric bonded to both sides of an inner meltblown layer are also disclosed. In addition, garments made with the fabric are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.